package com.jingdianjichi.wx.controller;

import com.jingdianjichi.wx.handler.WxChatMsgFactory;
import com.jingdianjichi.wx.handler.WxChatMsgHandler;
import com.jingdianjichi.wx.utils.MessageUtil;
import com.jingdianjichi.wx.utils.SHA1;
import lombok.extern.slf4j.Slf4j;
import org.apache.logging.log4j.core.config.plugins.validation.constraints.Required;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.Map;
import java.util.Objects;

@RestController
@Slf4j
@RequestMapping
public class CallBackController {
    private static final String token = "adsfasdfadsfdsfaads";
    @Resource
    private WxChatMsgFactory wxChatMsgFactory;

    @RequestMapping("/test")
    public String test() {
        return "hello word";
    }

    /**
     * 回调消息校验
     *
     * @return
     */
    @GetMapping("callback")
    public String callBack(@RequestParam("signature") String signature,
                           @RequestParam("timestamp") String timestamp,
                           @RequestParam("nonce") String nonce,
                           @RequestParam("echostr") String echostr) {
        log.info("get验签请求参数：signature：{}，timestamp：{}，nonce：{}，echostr：{}"
                , signature, timestamp, nonce, echostr);
        String shaStr = SHA1.getSHA1(token, timestamp, nonce, "");
        if (signature.equals(shaStr)) {
            return echostr;
        }
        return "unknown";
    }

    @PostMapping(value = "callback", produces = "application/xml;charset=UTF-8")
    public String callBack(
            @RequestBody String requestBody,
            @RequestParam("signature") String signature,
            @RequestParam("timestamp") String timestamp,
            @RequestParam("nonce") String nonce,
            @RequestParam(value = "msg_signature", required = false) String msgSignature) {
        log.info("接受到微信的请求：requestBody：{}，signature：{}，timestamp：{}，nonce：{}，echostr：{}"
                , requestBody, signature, timestamp, nonce);
        Map<String, String> msgMap = MessageUtil.parseXml(requestBody);
        String MsgType = msgMap.get("MsgType");
        String event = msgMap.get("Event") == null ? "" : msgMap.get("Event");
        log.info("MsgType：{}，event：{}", MsgType, event);
        StringBuilder sb = new StringBuilder();
        sb.append(MsgType);
        if (!StringUtils.isEmpty(event)) {
            sb.append(".");
            sb.append(event);
        }
        String msgTypeKey = sb.toString();

        WxChatMsgHandler wxChatMsgHandler = wxChatMsgFactory.getHandlerByMsgType(msgTypeKey);
        if (Objects.isNull(wxChatMsgHandler)) {
            return "unknown";
        }
        String replyContent = wxChatMsgHandler.dealMsg(msgMap);
        log.info("replyContent：{}", replyContent);
        return replyContent;
    }

}
